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First non-zero element in each column
For a given matrix, calculate the index of the first non-zero element in each column. Assuming a column with all elements zero ...

4 years ago

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Array of Ones
Create a 100 X 100 array of ones.

4 years ago

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Duplicate each element of a vector.
for an n-dimensional vector x, the function should return another vector 2n-dimension which each element is repeated twice. Ex...

4 years ago

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Swap two numbers
Example Input: a = 10 b = 20 Output a = 20 b = 10

4 years ago

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find the maximum element of the matrix
for e.g x = [1 2; 3 4] y = 4

4 years ago

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Sum of diagonal of a square matrix
If x = [1 2 4; 3 4 5; 5 6 7] then y should be the sum of the diagonals of the matrix y = 1 + 4 + 7 = 12

4 years ago

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Doubling elements in a vector
Given the vector A, return B in which all numbers in A are doubling. So for: A = [ 1 5 8 ] then B = [ 1 1 5 ...

4 years ago

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Sum of the Matrix Elements
Add up all the elements in a NxM matrix where N signifies the number of the rows and M signifies the number of the columns. E...

4 years ago

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Back to basics 7 - Equal NaNs
Covering some basic topics I haven't seen elsewhere on Cody. Given 2 input variables, output true if they are equal, false ot...

4 years ago

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Vector creation
Create a vector using square brackets going from 1 to the given value x in steps on 1. Hint: use increment.

4 years ago

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Replace Vector Elements
Replace all elements in a vector which are equal to or smaller than zero with 0.1. Example: A = [1 2 3 -1 0 2 -3 -80]; ...

4 years ago

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Create a vector
Create a vector from 0 to n by intervals of 2.

4 years ago

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Matlab Basics - Create a row vector
Write a Matlab script to create a row vector of 10 consecutive numbers x = [1 2 3 4 5 6 7 8 9 10]

4 years ago

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Project Euler: Problem 1, Multiples of 3 and 5
If we list all the natural numbers below 10 that are multiples of 3 or 5, we get 3, 5, 6 and 9. The sum of these multiples is 23...

4 years ago

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Calculate Amount of Cake Frosting
Given two input variables |r| and |h|, which stand for the radius and height of a cake, calculate the surface area of the cake y...

4 years ago

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Check if sorted
Check if sorted. Example: Input x = [1 2 0] Output y is 0

4 years ago

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Reverse the vector
Reverse the vector elements. Example: Input x = [1,2,3,4,5,6,7,8,9] Output y = [9,8,7,6,5,4,3,2,1]

4 years ago

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Return the 3n+1 sequence for n
A Collatz sequence is the sequence where, for a given number n, the next number in the sequence is either n/2 if the number is e...

4 years ago

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Length of a short side
Calculate the length of the short side, a, of a right-angled triangle with hypotenuse of length c, and other short side of lengt...

4 years ago

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Determine whether a vector is monotonically increasing
Return true if the elements of the input vector increase monotonically (i.e. each element is larger than the previous). Return f...

4 years ago

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02 - Vector Variables 5
_eVec_ = _Hello_ ( _eVec_ is a string, which is a vector of characters )

4 years ago

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Insert zeros into vector
Insert zeros after each elements in the vector. Number of zeros is specified as the input parameter. For example: x = [1 ...

4 years ago

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Flipping
Write code that can reverse the vector without using any sort of loop. Example Given the input vector A = [ 1 2 3 4 5...

4 years ago

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Square root of number
Square root of given number.

4 years ago

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Square the input
Given a scalar or vector x, return the square of each element. Example x = [7 2] answer = [49 4]

4 years ago

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CONVERT TAN TO SIN
In a right angle triangle ABC given the tan(A) then find sin(A) For example tan(A)=3/4 then sin(A)=3/5

4 years ago

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Square Diagonal
If n is the given number, then make a diagonal matrix of size 2*2 with the square of that number.

4 years ago

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Square
square root of x

4 years ago

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Sum the 'edge' values of a matrix
Sum the 'edge' values of an input matrix (the values along the perimeter). Example [1 2 3 4 5 6 7 8 9] Output = ...

4 years ago

Solved

Repeat elements of a vector
Repeat each elements of a given vector according to their values. * x=[1,2,1,3] * y=[1,2,2,1,3,3,3]

4 years ago